Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700622 | Platemaking process with heat developable silver salt diffusion transfer | Hiroyuki Hirai | 1997-12-23 |
| 5604089 | Silver halide photographic material | Akihiko Ikegawa | 1997-02-18 |